Maps-Online
The Maps Online app is to fetch map image from a WMS server and place as background image in a graph.
WMS server locations often change. You will need to search and find your desired WMS server address.
We can using the button beside the Layer drop-down to load more than one maps, such as boundary and colorfilled map. For more details, please refer to the blog post
You can add/delete sources through the button on the right.
You can select more than one layer through the button on the right.
There is a config file under the Apps folder, "%@AMaps Online\MapsOnline.conf":